錯誤c0000：語法錯誤，意外的'？'在令牌'？'

Question

好吧我搜索了其他人的問題，並找不到解決我的問題。我在C＃和GLSL 330中使用OpenTK。它生成錯誤消息 錯誤c0000：語法錯誤，意外的'？'在令牌'？'

由於某種原因，它不喜歡我正在做的事情。所以，這裏是我的代碼，我希望有人能告訴我我做錯了什麼。

public static string vertexShaderSource = @" 
#version 330 

uniform mat4 pvm; 

in vec4 Position; 
in vec2 texCoord; 

out vec2 texCoordV; 

void main() 
{ 
    texCoordV = texCoord; 
    gl_Position = Position * pvm; 
}"; 

public static string fragmentShaderSource = @" 
#version 330 

in vec2 texCoordV; 

out vec4 colorOut; 

void main() 
{ 
    colorOut = vec4(texCoord, 0.0, 0.0);  
}"; 


    public void Initalize() 
    { 
     style = GUI_Skin.styles[0]; 
     vertices = new Vector3[6]; 
     vertices[0] = new Vector3(0, 0, 0f); 
     vertices[1] = new Vector3(100, 0, 0f); 
     vertices[2] = new Vector3(0, 100, 0f); 
     vertices[3] = new Vector3(100, 0, 0f); 
     vertices[4] = new Vector3(0, 100, 0f); 
     vertices[5] = new Vector3(100, 100, 0f); 

     GL.GenBuffers(1, out vertHandle); 
     GL.BindBuffer(BufferTarget.ArrayBuffer, vertHandle); 
     GL.BufferData<Vector3>(BufferTarget.ArrayBuffer, 
           new IntPtr(vertices.Length * Vector3.SizeInBytes), 
           vertices, BufferUsageHint.StaticDraw); 

     texCoords = new Vector2[6]; 
     texCoords[0] = new Vector2(0,0); 
     texCoords[1] = new Vector2(1, 0); 
     texCoords[2] = new Vector2(0, 1); 
     texCoords[3] = new Vector2(1, 0); 
     texCoords[4] = new Vector2(0, 1); 
     texCoords[5] = new Vector2(1, 1); 

     GL.GenBuffers(1, out texHandle); 
     GL.BindBuffer(BufferTarget.ArrayBuffer, texHandle); 
     GL.BufferData<Vector2>(BufferTarget.ArrayBuffer, 
           new IntPtr(texCoords.Length * Vector2.SizeInBytes), 
           texCoords, BufferUsageHint.StaticDraw); 
    } 

    public void Draw() 
    { 
     GL.EnableVertexAttribArray(vertHandle); 
     GL.BindBuffer(BufferTarget.ArrayBuffer, vertHandle); 
     GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, Vector3.SizeInBytes, 0); 

     GL.EnableVertexAttribArray(texHandle); 
     GL.BindBuffer(BufferTarget.ArrayBuffer, texHandle); 
     GL.VertexAttribPointer(0, 2, VertexAttribPointerType.Float, false, Vector2.SizeInBytes, 0); 

     GL.DrawArrays(PrimitiveType.Triangles, 0, 6); 

     GL.DisableVertexAttribArray(vertHandle); 
     GL.DisableVertexAttribArray(texHandle); 
    } 

Answer 1

好的，所以問題已修復。感謝上面的有用評論。

讓我們從着色器開始。必須刪除字符串聲明前的@符號，並且必須插入每行\ n之後。另外，當我使用着色器繪製時，我正在調用轉置。這可以通過改變矩陣的順序來解決。

public static void Run() 
    { 
     int uniformLocation = GL.GetUniformLocation(shaderProgramHandle, "pvm"); 
     Matrix4 mat; 
     GL.GetFloat(GetPName.ProjectionMatrix, out mat); 
     GL.UniformMatrix4(uniformLocation, false, ref mat); 

     GL.UseProgram(shaderProgramHandle); 
    } 

我從GL.UniformMatrix4(uniformLocation, true, ref mat);改爲GL.UniformMatrix4(uniformLocation, false, ref mat);和着色器本身GL_POSITION的順序從Position * pvm;改爲pvm * Position;

public static string vertexShaderSource = "#version 330\n" + 
    "uniform mat4 pvm;\n" + 
    "in vec4 Position;\n" + 
    "in vec2 texCoord;\n" + 
    "out vec2 texCoordV;\n" + 
    "void main()\n" + 
    "{\n" + 
     "texCoordV = texCoord;\n" + 
     "gl_Position = pvm * Position;\n" + 
    "}\n"; 

    public static string fragmentShaderSource = "#version 330\n" + 
    "in vec2 texCoordV;\n" + 
    "out vec4 colorOut;" + 
    "void main()\n" + 
    "{\n" + 
     "colorOut = vec4(texCoordV, 0.0, 0.0);\n" + 
    "}\n" ; 

後，這是固定我得到了一個錯誤的渲染表面變白了。該錯誤位於Draw()函數內。基本上我沒有正確地分配陣列位置。

public void Draw() 
    { 
     GL.EnableVertexAttribArray(0); 
     GL.BindBuffer(BufferTarget.ArrayBuffer, vertHandle); 
     GL.VertexAttribPointer(0, 3, VertexAttribPointerType.Float, false, Vector3.SizeInBytes, 0); 

     GL.EnableVertexAttribArray(1); 
     GL.BindBuffer(BufferTarget.ArrayBuffer, texHandle); 
     GL.VertexAttribPointer(1, 2, VertexAttribPointerType.Float, false, Vector2.SizeInBytes, 0); 

     GL.DrawArrays(PrimitiveType.Triangles, 0, 6); 

     GL.DisableVertexAttribArray(0); 
     GL.DisableVertexAttribArray(1); 
    }